public FoodNewsPageViewModel()
        {
            _newsService = new NewsService();
            List<NewsItem> items = _newsService.GetNewsStories(NewsStoryCategory.Food);

            ObservableCollection<INewsItemViewModel> itemVMs = new ObservableCollection<INewsItemViewModel>();

            (from item in items
             select new NewsItemViewModel(item)).ToList().ForEach(itemVMs.Add);

            NewsStories = itemVMs;
        }